US8511455B2 - Escalator step - Google Patents

Escalator step Download PDF

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Publication number
US8511455B2
US8511455B2 US13/531,040 US201213531040A US8511455B2 US 8511455 B2 US8511455 B2 US 8511455B2 US 201213531040 A US201213531040 A US 201213531040A US 8511455 B2 US8511455 B2 US 8511455B2
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US
United States
Prior art keywords
friction
coefficient
escalator
fibers
step according
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Expired - Fee Related
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US13/531,040
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English (en)
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US20120325617A1 (en
Inventor
Miguel Angel Gonzalez Alemany
Jose Ojeda Arenas
Daniel Hernandez Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TK Elevator Innovation Center SA
Original Assignee
ThyssenKrupp Elevator Innovation Center SA
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Publication date
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Assigned to THYSSENKRUPP ELEVATOR INNOVATION CENTER, S.A. reassignment THYSSENKRUPP ELEVATOR INNOVATION CENTER, S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GONZALEZ ALEMANY, MIGUEL ANGEL, Hernandez Fernandez, Daniel, OJEDA ARENAS, JOSE
Publication of US20120325617A1 publication Critical patent/US20120325617A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/08—Carrying surfaces
    • B66B23/12—Steps

Definitions

  • the present invention relates to an escalator step that improves user safety and reduces the moving masses by using materials suitable in the different parts of the step/pallet.
  • the invention also has the following advantages:
  • Walkways and escalators today consist of a continuous band of metal components, such as steps and pallets, attached to one another.
  • the purpose of different drive systems of walkways and escalators is to drive this continuous band of metal components.
  • This band of metal components usually constitutes most of the weight of the system that must be moved by the drive systems. Therefore, one of the problems solved by the invention is that of reducing the weight of the moving components that are driven by the drive systems.
  • Steps/pallets for escalators/moving walkways formed by a metal rack to which a steppable surface is attached with screws or other attachment means are known. Designs in which the metal rack further constitutes the smooth riser of the step are common; whereas the steppable surface has a grooved surface facilitating the transition between the moving part and the fixed part in the boarding and disembarking areas. In known systems, the steppable grooved surface has been made from wood, aluminum or stainless steel.
  • Steps formed by a number of parts are also known, where the steppable part and the riser have grooved surfaces, formed by stainless steel or aluminum.
  • the edges of the steppable surface have yellow markings. Said lines can be replaced with yellow plastic parts with the same marking function.
  • step/pallet designs have attached side steel or aluminum plates, or have inclined edges for the purpose of minimizing the risk of being trapped laterally between the moving steps/pallets and the fixed skirts of escalators/moving walkways.
  • step designs consisting of an independent steppable surface articulated to a riser are also known, such as those shown in ES 2 334 630, for the purpose of reducing overall dimensions of the escalator and for changing the shape of the riser of from a convex shape to a concave shape.
  • An object of the invention is to reduce the weight of the step/pallet, thereby reducing the moving masses and the general size of the components, as well as the associated energy losses.
  • Another object of the invention is to reduce the risk of being trapped between steps in escalators, for all shoe types, in the transitions between the horizontal movement and inclined plane movement areas.
  • the step of the present invention comprises two surfaces with different mechanical properties:
  • the steppable surface can be manufactured by:
  • the steppable surface can further have marking elements on its edges and/or attached side plates.
  • the surface of the riser of the step can be manufactured by:
  • the riser can have marking elements on its edges and/or attached side plates.
  • the step can have the steppable surface and the riser articulated to one another.
  • the step of the present invention can be made as one piece without articulation between the steppable surface and riser.
  • the manufacturing operations must take into account the use of different materials with different friction requirements for each of the two described surfaces, the first surface in the steppable area having a high coefficient of friction and the second surface in the area of the riser having a low coefficient of friction. Therefore, the one-piece step can be manufactured by:
  • the step thus built can have marking elements on its edges and/or adjacent side plates.
  • overall weight of the step is reduced by reducing the moving masses and the associated power consumption and the risk of being trapped between steps in the transitions between the horizontal movement and inclined plane movement areas.
  • FIG. 1 is a perspective view of a step according to a preferred configuration of the invention with a concave riser.
  • FIG. 2 shows a top perspective view of the steppable platform of FIG. 1 , manufactured from injected aluminum.
  • FIG. 2A shows a bottom perspective view of the steppable platform of FIG. 1 , manufactured from injected aluminum.
  • FIG. 3 shows a perspective view of a steppable platform of FIG. 1 .
  • FIG. 3A is a detail of FIG. 3 , where the steppable platform is manufactured from a composite having a high coefficient of friction.
  • FIG. 3B is a detail of FIG. 3 , where the steppable platform is thermoformed from a customized film of resin having a high coefficient of friction, reinforced with carbon fibers.
  • FIG. 3C is a detail of FIG. 3 , where the steppable platform uses a composite rack and the steppable grooved surface is formed from a sheet of stainless steel.
  • FIG. 4 shows a perspective view of a riser of FIG. 1 .
  • FIG. 4A is a detail of FIG. 4 , where the riser is manufactured from a composite having a low coefficient of friction.
  • FIG. 4B is a detail of FIG. 4 , where the riser is thermoformed from a customized film of resin having a low coefficient of friction reinforced with carbon fibers.
  • FIG. 4C shows a perspective view of another riser of FIG. 1 .
  • FIG. 4D is a detail of FIG. 4C , where the riser is manufactured from injected aluminum.
  • FIG. 4E is a detail of FIG. 4 , where the riser uses a composite rack and the grooved surface is formed from a sheet of stainless steel.
  • FIG. 5 is a perspective view similar to FIG. 1 , showing a convex riser.
  • FIG. 6 is a perspective view of the step of the present invention without any articulation, manufactured by means of injection bi-component.
  • FIG. 7 is a perspective view of the step of the present invention without articulation, manufactured by means of thermoforming a customized film of resin having a high coefficient of friction for the steppable surface and low coefficient of friction for the riser, reinforced with carbon fibers or fibers of another material having high mechanical strength.
  • FIG. 8 shows a perspective view of a group of pallets.
  • FIGS. 9A , 9 B show a fixed plate in a passenger disembarking/boarding area, where the passengers step off/step on the steps/pallets.
  • FIGS. 10A , 10 B illustrate a tread or first surface and a riser or second surface, where the fibers that can be part of these elements are shown.
  • Escalator step comprising:

Landscapes

  • Escalators And Moving Walkways (AREA)
US13/531,040 2011-06-24 2012-06-22 Escalator step Expired - Fee Related US8511455B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201131064 2011-06-24
ES201131064A ES2411982B1 (es) 2011-06-24 2011-06-24 Peldaño para escaleras mecánicas y procedimiento de fabricación

Publications (2)

Publication Number Publication Date
US20120325617A1 US20120325617A1 (en) 2012-12-27
US8511455B2 true US8511455B2 (en) 2013-08-20

Family

ID=46354121

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/531,040 Expired - Fee Related US8511455B2 (en) 2011-06-24 2012-06-22 Escalator step

Country Status (7)

Country Link
US (1) US8511455B2 (de)
EP (1) EP2537792B1 (de)
JP (1) JP2013006700A (de)
KR (1) KR20130001171A (de)
CN (1) CN103043520B (de)
BR (1) BR102012015604A2 (de)
ES (2) ES2411982B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170174476A1 (en) * 2015-12-17 2017-06-22 Georg Fischer Automotive (Suzhou) Co., Ltd. Bionic step element
US10392231B2 (en) * 2016-09-06 2019-08-27 Frank Mario Sansevero Escalator system with vertical step risers and step-mounted angled side flanges

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106477440A (zh) * 2015-09-01 2017-03-08 常州市丛禾电梯配件有限公司 碳纤维复合梯级

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214580A (en) * 1937-06-26 1940-09-10 Westinghouse Elec Elevator Co Moving stairway
US5894917A (en) * 1996-12-31 1999-04-20 Lg Industrial Systems Co., Ltd. Step combining system for escalator
US5944164A (en) * 1996-03-04 1999-08-31 O&K Rolltreppen Gmbh & Co. Kg Assembly method for steps or pallets of escalators or moving sidewalks
US5988350A (en) * 1996-05-30 1999-11-23 Invento Ag Escalator step
US6543599B2 (en) * 2000-11-08 2003-04-08 Georg Fischer Mossner Gmbh Step for escalators
ES2334630A1 (es) 2009-07-17 2010-03-12 Thyssenkrupp Elevator Innovation Center, S.A. Escalera mecanica.
US8220612B2 (en) * 2007-10-01 2012-07-17 Inventio Ag Step for escalator, and escalator with such a step
US8322508B2 (en) * 2007-10-01 2012-12-04 Inventio Ag Step support or plate support for tread units of a conveying device, tread units and conveying device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005067A (en) * 1933-07-10 1935-06-18 Otis Elevator Co Moving stairway
JPS59140261U (ja) * 1983-03-08 1984-09-19 株式会社東芝 エスカレ−タの踏段
US4984673A (en) * 1988-03-07 1991-01-15 Hitachi, Ltd. Step of passenger conveyor method of manufacturing same, and wavy metal plate
US5358089A (en) * 1994-03-01 1994-10-25 Riedel Hans Dieter Plastic escalator step
JP3800432B2 (ja) * 1998-03-18 2006-07-26 三菱電機株式会社 マンコンベアの踏板装置及びマンコンベア装置
JP2002256223A (ja) * 2001-02-27 2002-09-11 Kansai Paint Co Ltd プラスチック製エスカレーター階段用塗料及びその塗膜形成方法
US7222713B2 (en) * 2001-05-25 2007-05-29 Otis Elevator Company Step attachment on the step chain of an escalator
JP2007210714A (ja) * 2006-02-07 2007-08-23 Mitsubishi Electric Corp マンコンベアの踏板
KR100955562B1 (ko) * 2006-04-03 2010-04-30 미쓰비시덴키 가부시키가이샤 에스컬레이터의 스텝과 그것을 구비한 에스컬레이터
JP2009196737A (ja) * 2008-02-19 2009-09-03 Toshiba Elevator Co Ltd 乗客コンベア用踏段
WO2010074669A1 (en) * 2008-12-22 2010-07-01 Otis Elevator Company Moving skirt mechanism for chain driven passenger conveyors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214580A (en) * 1937-06-26 1940-09-10 Westinghouse Elec Elevator Co Moving stairway
US5944164A (en) * 1996-03-04 1999-08-31 O&K Rolltreppen Gmbh & Co. Kg Assembly method for steps or pallets of escalators or moving sidewalks
US5988350A (en) * 1996-05-30 1999-11-23 Invento Ag Escalator step
US5894917A (en) * 1996-12-31 1999-04-20 Lg Industrial Systems Co., Ltd. Step combining system for escalator
US6543599B2 (en) * 2000-11-08 2003-04-08 Georg Fischer Mossner Gmbh Step for escalators
US8220612B2 (en) * 2007-10-01 2012-07-17 Inventio Ag Step for escalator, and escalator with such a step
US8322508B2 (en) * 2007-10-01 2012-12-04 Inventio Ag Step support or plate support for tread units of a conveying device, tread units and conveying device
ES2334630A1 (es) 2009-07-17 2010-03-12 Thyssenkrupp Elevator Innovation Center, S.A. Escalera mecanica.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170174476A1 (en) * 2015-12-17 2017-06-22 Georg Fischer Automotive (Suzhou) Co., Ltd. Bionic step element
US9764928B2 (en) * 2015-12-17 2017-09-19 Georg Fischer Automotive (Suzhou) Co., Ltd. Bionic step element
US10392231B2 (en) * 2016-09-06 2019-08-27 Frank Mario Sansevero Escalator system with vertical step risers and step-mounted angled side flanges

Also Published As

Publication number Publication date
CN103043520A (zh) 2013-04-17
KR20130001171A (ko) 2013-01-03
BR102012015604A2 (pt) 2013-07-09
ES2576509T3 (es) 2016-07-07
ES2411982B1 (es) 2014-03-11
ES2411982R1 (es) 2013-08-09
CN103043520B (zh) 2016-12-21
JP2013006700A (ja) 2013-01-10
US20120325617A1 (en) 2012-12-27
EP2537792A3 (de) 2013-02-20
EP2537792A2 (de) 2012-12-26
EP2537792B1 (de) 2016-03-16
ES2411982A2 (es) 2013-07-09

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